If you choose not to move the roof to a different level revit notifies you later if the roof is too low.
Revit 2014 roof plan.
Click architecture tab build panel roof drop down roof by footprint.
If you try to add a roof on the lowest level a dialog prompts you to move it to a higher level.
But for whatever reason my a dash roof does not exist.
Click architecture tabbuild panelroof drop down roof by footprint.
Display a floor plan view or a reflected ceiling plan view.
Complete 16h revit beginner course.
On the draw panel select a sketch or pick tool.
If you try to add a roof on the lowest level a dialog prompts you to move it to a higher level.
So in order to create that a dash roof plan what i can do is come over here to my view tab click here and then come into my floorplan view.
See hd version of video tutorial here.